Results 11 to 20 of about 125,675 (299)
IET Power Electronics, 2021 This paper presents a novel approach to adapt the conventional direct power control (DPC) methods that are applied to ac/dc converters with an inductive capacitive inductive (LCL) filter.
Chuanjin Zhang +5 more
doaj +1 more source
Lifting Graph Automorphisms by Voltage Assignments
European Journal of Combinatorics, 2000 The authors provide the first systematic combinatorial treatment of the automorphism lifting problem in the context of graphs. They make consistent use of several new fundamental concepts: the action of the fundamental groupoid, the notion of a voltage space, various kinds of invariance of voltage spaces, and the geometry of the lifted actions by means
Malnič, Aleksander +2 more
openaire +2 more sources
Comparison of multiple stage braking circuits for wind driven generators [PDF]
, 2016 This paper presents multiple stage braking circuits for wind turbines with a permanent magnet synchronous generator. The system combines both passive converter circuit coupled to a resistive braking circuit.
Valchev, Vencislav Cekov +2 more
core +1 more source
Capacity‐based optimization using whale optimization technique of a power distribution network
Engineering Reports, 2022 In the power distribution network, real power loss and voltage profile management are critical issues. By providing active and reactive power support, both of these issues can be managed.
Bawoke Simachew +5 more
doaj +1 more source
Control of a battery charger for electric vehicles with unity power factor
TESEA, Transactions on Energy Systems and Engineering Applications, 2021 A nonlinear controller for an electric vehicle battery charger is proposed in this work. The controller allows charging the battery bank with constant current and constant voltage charging profile, while ensuring unity power factor and low distortion in ...
Federico M. Serra, Cristian H. De Angelo
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Optimal Phase Swapping in Low Voltage Distribution Networks Based on Smart Meter Data and Optimization Heuristics [PDF]
, 2017 In this paper a modified version of the Harmony Search algorithm is proposed as a novel tool for phase swapping in Low Voltage Distribution Networks where the objective is to determine to which phase each load should be connected in order to reduce the ...
Bordagaray, Ana González +5 more
core +2 more sources
Electrical engineering & Electromechanics, 2016 Features of the data processing procedures of multiple measurements of the dielectric loss tangent of the high-voltage insulation, which are based on the comparison method, were considered.
V. K. Beliaev, H. N. Panenko
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Energies, 2023 Voltage source converters are widely used in distributed generation (DG) and uninterruptible power supply (UPS) applications. This paper aims to find the controller that performs best when model changes occur in the system, showing insensitivity to ...
Shafquat Hussain +4 more
doaj +1 more source
Analysis and Design of DC-Bus Voltage Controller of Energy Storage Systems in DC Microgrids
IEEE Access, 2019 In this paper, a novel voltage controller of energy storage system (ESS) in DC microgrids (DC-MG) is proposed to enhance the DC-bus voltage stability. At first, a mathematical model of the DC-MG is developed in a state-space form.
Yoon-Cheul Jeung +2 more
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International Journal of Interactive Multimedia and Artificial Intelligence, 2020 Assessment of power systems voltage stability is considered an important assignment for the operation and planning of power system. In this paper, a voltage stability study using Continuous Power Flow (CPF) is introduced to evaluate the impact of ...
Ali Selim +3 more
doaj +1 more source